package com.itheima.no.mstring;

import java.util.Scanner;

public class StringDemo04 {
    public static void main(String[] args) {
        System.out.println("输入一个手机号码");
        Scanner sc=new Scanner(System.in);
        String s = sc.next();
        String ss = s.substring(0, 3);
        String se = s.substring(7);
        System.out.println(ss+"****"+se);


    }
}
